More breathable & stretchable than the PRO Barrier Lite jacket but not as lightweight the PRO Aero jacket makes for a great Autumn/ Spring jacket for temperatures ranging 10 to 15 degrees celsius The PRO Aero PRO Softshell Lite fabric provides optimal wind & water resistance Full-length internal draft flap with zipper garage seals in warmth 360 degree reflectivity Collar tapers from front to back for on-bike ergonomics No pockets Weight: 110 grams [size medium] Fabrics: 100% polyester (Weight: 100 g/m 2) Form Fit Weather forecast: Windy with risk of showers Temperature rating: 10 degrees